Home / 2,195.47-3,029.86-1,200.74

Finding the Fourth Proportional to 2,195.47, 3,029.86 and 1,200.74

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Solution

The fourth proportional to 2,195.47, 3,029.86 and 1,200.74 is: 1,657.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.47 : 3,029.86 = 1,200.74 : x
  2. Step 2: Convert to fraction form
    2,195.47/3,029.86 = 1,200.74/x
  3. Step 3: Cross multiply
    2,195.47x = 3,029.86 × 1,200.74
  4. Step 4: Simplify right side
    2,195.47x = 3,638,060.45
  5. Step 5: Solve for x
    x = 3,638,060.45/2,195.47
  6. Step 6: Final answer
    x = 1,657.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.